Today my laptop keyboard keys sudden failure, the keyboard numbers and letters misplaced, U becomes 4, I becomes 5, O becomes 6, J becomes 1, K becomes 2, L becomes 3, M becomes 0, To the letters, made me play no word. Internet search a bit, I realized that is enabled by a keyboard function keys, start a notebook on the small keyboard. The key change is set on my laptop keyboard. Then press the NumLk key, key to all of those failures restored.

(Some laptop is based on Fn NumLk or Shift Numlk) was thought for a moment, I used to own keyboard are good, but yesterday a good friend over, he has a wireless keyboard and mouse, get the top of my laptop Trial, the next day notebook keyboard that comes with entering numbers and letters appears misplaced this. I think I may be an external keyboard with laptop keyboard comes with conflict, and then automatically starts the external keyboard, so the function keys to press Fn NumLk restored, this method for those who bring their own laptop and then use an external keyboard or wireless keyboard USB external keyboard, the keyboard keys due to dislocation of numbers and letters failed to solve the problem feasible and effective. Related information:Fn key function is a combination of laptop keyboard function keys, use it, and with certain key, you can quickly achieve some common operations, such as: volume adjustment, adjust the screen brightness, turn on the small keypad and other functions to facilitate the people to use. Fn key and the Ctrl, Alt, Shift key, as always, and other key pressed.

Such as a laptop computer keyboard desktop keyboard without numeric keypad, then use part of the letter keys instead of the numeric keypad, when you press the numlock key to open the numeric keypad, press Fn + M is equivalent to the numbers 0, press Fn + J, K , L is equivalent to figures 1,2,3, press Fn + U, I, O, P is equivalent to 4,5,6, * and so on. This is a common combination, and some notebooks and some specially designed combination of the brand, and only install the driver only works, such as Dell notebook by Fn + Esc to make the system hibernate, Fn + F10 pop-up drive, Fn + up arrow increase screen brightness, the IBM notebook by Fn + F2 to open / close the screen and so on. Laptop keyboard Fn concrete realization of that kind of function, generally marked on the keyboard. Fn key usually is blue, then when the other keys on a blue mark, for example, said earlier that the J, K, L keys words marked 1,2,3 in blue, then press the Fn key to increase the marked as blue can hit above the character or the corresponding function. The definition of Fn combinations to manufacturers is not the same, but the function of Fn key combinations are generally hardware-level support, do not install drivers to use, but some also need software support functions such as sleep. Concrete mix and the corresponding function can refer to your manual, no instructions can also go to the official website.

If you find it troublesome to see the keyboard keys can also try. Specific functions are generally defined in the F1 ~ F12, specific functions printed keycap icons. Such as: printed, said the speaker volume adjustment (usually three, increase, decrease, mute switch), printed with the sun is the brightness adjustment (usually two, brightening, less dark), is printed on the moon Sleep.

Different brand icons are slightly different location of function keys may also be different. How many functions are not exactly the same as the right hand area of the small keyboard, the keypad can be a combination of Fn and NumLock on, turned on, can simulate the standard keyboard small keyboard for easy financial workers or other persons in great demand digital input, but occupied at this time can not normally enter the original key characters, and until the closure of small keyboard so far.